EPA Method 8081A Pesticide Standard B Back Catalog number: 92788 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 681604 Dihydroxy quinoxaline, 100mg Price on request 11359.8-10MG N-Nitrosobenzylmethyl-d3-amine,10mg,neat,10mg, Price on request 94516 Internal Standard for AB SIM Price on request